Ventilator



B. JOCHUMS VENTILATOR l Sept. 19, 1944.

Filed Aug. 1l, 1942 ATrnRNEYs Patented Sept. 19, 1944 UNITED sTATEs PATENT OFFICE 2,358,398 vEN'rIL'ATon Benjamin Jochums, Kewanee, Ill. Application August 11, 1942, Serial No. 454,424

2 Claims.

My invention relates to the ventilation of buildings, and has among its objects and advantages the provision of an improved window ventilator designed to eliminate objectional drafts, the entrance of rain, and in which a screen is incorporated therein, together with means for tting the ventilator to standard window structures.

In the accompanying drawing:

Figure 1 is an end View of the ventilator;

Figure 2 is a top view;

Figure 3 is an outside elevational view; and

Figure 4 is a sectional view taken along the line 4-4 of Figure 3.

In the embodiment selected for illustration, the ventilator I includes a wall I2 having a flange I4 along its lower edge to rest on the window sill I6 inside the building. This wall extends upwardly at an acute angle to the window frame AI8 and has a second wall 20 along its upper edge inclining in about the same degree toward the window frame. 'Ihe upper edge of the wall 20 is spaced a considerable distance from the frame I8 to provide a passage 22 for the circulation of air.

End walls 24 Y A2l) inY right angular relationship therewith and have their vertical edges 26 lying in a plane common to the line of juncture between the'wall I2 and the iiange I4. To the walls 24 is secured a vertical wall 28 adapted to lie in engagement with the inner face of the lower sash rail 30 when the window is raised for Ventilating purposes, as in Figures 1 and 2.

Each end wall 24 includes a right angular flange 32 having a plate 34 slidably connected therewith through the medium of anges 36 bent from the plate. An ear 38 is provided on each plate 34 for securing the ventilator to the frame I8, as by driving a nail or a screw through the opening 40 in the ear and into the frame I8.

A screen 42 is fitted inside the ventilator and is supported by clips 44 attached to the walls I2 and 28.

To direct incoming air upwardly inside the room, two air deflecting dampers 46 are arranged in the passage 22. The dampers 46 are mounted on shafts 48 rotatably journaled in the end walls 24 and each provided with a knob 5U to facilitate turning of the shaft.

The dampers 46 may be individually adjusted to desired positions. When in the positions of Figure 4, the dampers deflect the incoming air upwardly along the window, which is also true of the wall 20. One damper only may be opened are secured to the walls I2 andV when less air circulation is desired. The two dampers may be pivoted to lie in horizontal planes in overlapping relationship, with the outermost damper engaging underneath a narrow flange 52 along the upper edge of the wall 28. Thus the two dampers also function as a closure for the passage 22.

The respective walls of the ventilator may be formed of sheet metal with the parts welded into a unitaryV casing open at its rear for the inlet rof air, with the air outlet opening located at the top of the casing. f

Without further elaboration, the foregoing will so fully illustrate my invention, that others may, by applying current knowledge, readily adapt the same for use under various conditions of service.

I claim:

1. A ventilator comprising an elongated casing having end walls and a longitudinal rearwall, said casing being open at the front and top to provide air inlet and outlet openings respectively, the major portion of said rear Wall extending obliquely upward and rearward from the forward bottom edge of the casing and connecting with the bottom edge of an upper minor portion, said minor portion of the rear wall extending obliquely upward and forward from its juncture with the major portion and having its upper edge spaced from the front edges of the Side Walls to form said top outlet opening, and a screen mounted obliquely between the rear wall and the forward upper portion of the casing. Y

2. A ventilator comprising an elongated casing having end walls and a longitudinal rear wall, said casing being open at the front and top to provide air inlet and outlet openings respectively, the major portion of said rear wall extending obliquely upward and rearward from the forward bottom edge of the casing and connecting with the bottom edge of an upper minor portion, said minor portion of the rear wall extending obliquely upward and forward from its juncture with the major portion and having its upper edge spaced Y' from the front edges of the side walls to form said top outlet opening, dampers pivotally mounted at the top of the casing for controlling the discharge of air through'the top opening, and a longitudinally extending screen mounted in the casing lwith its bottom edge secured against the medial portion of the major rear wall portion and its top edge `secured to the upper front edge of the casing.

BENJAMIN JOCHUMS. 

